Add socket_options argument to httpx.HTTPTransport class

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## Unreleased
 
+### Added
+
+* Add `socket_options` argument to `httpx.HTTPTransport` and `httpx.AsyncHTTPTransport` classes. (#2716)
+
 ### Fixed
 
 * Return `500` error response instead of exceptions when `raise_app_exceptions=False` is set on `ASGITransport`. (#2669)

httpx/_transports/default.py

@@ -28,6 +28,7 @@
 from types import TracebackType
 
 import httpcore
+from httpcore.backends.base import SOCKET_OPTION
 
 from .._config import DEFAULT_LIMITS, Limits, Proxy, create_ssl_context
 from .._exceptions import (
@@ -122,6 +123,7 @@ def __init__(
         uds: typing.Optional[str] = None,
         local_address: typing.Optional[str] = None,
         retries: int = 0,
+        socket_options: typing.Optional[typing.Iterable[SOCKET_OPTION]] = None,
     ) -> None:
         ssl_context = create_ssl_context(verify=verify, cert=cert, trust_env=trust_env)
 
@@ -136,6 +138,7 @@ def __init__(
                 uds=uds,
                 local_address=local_address,
                 retries=retries,
+                socket_options=socket_options,
             )
         elif proxy.url.scheme in ("http", "https"):
             self._pool = httpcore.HTTPProxy(
@@ -153,6 +156,7 @@ def __init__(
                 keepalive_expiry=limits.keepalive_expiry,
                 http1=http1,
                 http2=http2,
+                socket_options=socket_options,
             )
         elif proxy.url.scheme == "socks5":
             try:
@@ -257,6 +261,7 @@ def __init__(
         uds: typing.Optional[str] = None,
         local_address: typing.Optional[str] = None,
         retries: int = 0,
+        socket_options: typing.Optional[typing.Iterable[SOCKET_OPTION]] = None,
     ) -> None:
         ssl_context = create_ssl_context(verify=verify, cert=cert, trust_env=trust_env)
 
@@ -271,6 +276,7 @@ def __init__(
                 uds=uds,
                 local_address=local_address,
                 retries=retries,
+                socket_options=socket_options,
             )
         elif proxy.url.scheme in ("http", "https"):
             self._pool = httpcore.AsyncHTTPProxy(
@@ -288,6 +294,7 @@ def __init__(
                 keepalive_expiry=limits.keepalive_expiry,
                 http1=http1,
                 http2=http2,
+                socket_options=socket_options,
             )
         elif proxy.url.scheme == "socks5":
             try:

pyproject.toml

@@ -29,7 +29,7 @@ classifiers = [
 ]
 dependencies = [
     "certifi",
-    "httpcore>=0.15.0,<0.18.0",
+    "httpcore>=0.17.2,<0.18.0",
     "idna",
     "sniffio",
 ]